Patent CA680622A successfully refreshed from Google Patents.
US3090879A
Expired / Lapsed
US
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Variable speed motor for winding apparatus
Assignee: Oerlikon Barmag AG
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Filing: 1956-03-22
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Granted: 1963-05-21
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Expires: 1976-03-22
Abstract
No abstract record available.
Inventors
- 👤 Lohest Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:52
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/02; H02K19/10; H02K21/00; H02K21/02; H02K21/021; H02K21/022; H02K21/023; H02K21/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A VARIABLE SPEED MOTOR COMPRISING AN ARMATURE COMPONENT HAVING AXIALLY SPACED APART MAGNETIC PATH FORMING PORTIONS AND A FIELD COMPONENT PROVIDING FIELD POLES ANGULARLY SPACED APART WITH RESPECT TO THE ROTARY AXIS OF THE MOTOR, SAID FIELD POLES EACH COMPRISING SECTIONS FORMING SEPARATE MAGNETIC FLUX PATHS OPERATIVELY ASSOCIATED WITH THE ARMATURE COMPONENT OF THE MOTOR A SAID SECTIONS BEING SPACED APART AXIALLY OF THE MOTOR A DISTANCE SUBSTANTIALLY EQUAL TO THE SPACEMENT OF SAID PATH FORMING PORTIONS OF THE ARMATURE, AND MEANS TO ADJUST THE RELATIVE AXIAL RELATIONSHIP OF SAID COMPONENTS.
Claim 2
Dependent Claim
91 words
A VARIABLE SPEED MOTOR COMPRISING AN ARMATURE COMPONENT HAVING AXIALLY SPACED APART MAGNETIC PATH FORMING PORTIONS AND A FIELD COMPONENT PROVIDING FIELD POLES ANGULARLY SPACED APART WITH RESPECT TO THE ROTARY AXIS OF THE MOTOR, SAID FIELD POLES EACH COMPRISING SECTIONS FORMING SEPARATE MAGNETIC FLUX PATHS OPERATIVELY ASSOCIATED WITH THE ARMATURE COMPONENT OF THE MOTOR A SAID SECTIONS BEING SPACED APART AXIALLY OF THE MOTOR A DISTANCE SUBSTANTIALLY EQUAL TO THE SPACEMENT OF SAID PATH FORMING PORTIONS OF THE ARMATURE, AND MEANS TO ADJUST THE RELATIVE AXIAL RELATIONSHIP OF SAID COMPONENTS.
References Cited (Backward Citations)
US1522742A
Cited
FR26902E
Cited
US1557213A
Cited
FR718860A
Cited
US1956041A
Cited
DE691864C
Cited
US2271049A
Cited
DE874424C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |